Facultatively
特许地; 能力地; 偶发地; 兼性地
🗣️ 情景例句
Our teacher drills us in English.
我们老师让我们反复操练英语。
What do you want to be when you finish your training?
当你完成训练的时候，你要做什么？
He has asked to be introduced to the pianist.
他要求会见这位钢琴家。